3D Printing of Gene-Activated Scaffolds for Bone Regeneration
Author Information
Author(s): Vasilyev Andrey Vyacheslavovich, Nedorubova Irina Alekseevna, Chernomyrdina Viktoria Olegovna, Meglei Anastasiia Yurevna, Basina Viktoriia Pavlovna, Mironov Anton Vladimirovich, Kuznetsova Valeriya Sergeevna, Sinelnikova Victoria Alexandrovna, Mironova Olga Anatolievna, Trifanova Ekaterina Maksimovna, Babichenko Igor Ivanovich, Popov Vladimir Karpovich, Kulakov Anatoly Alekseevich, Goldshtein Dmitry Vadimovich, Bukharova Tatiana Borisovna, Maliszewska Irena
Primary Institution: Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia
Hypothesis
Can 3D-printed gene-activated scaffolds improve bone regeneration?
Conclusion
The study found that 3D-printed PLGA scaffolds infused with adenoviral constructs carrying the BMP2 gene effectively promoted bone formation in a rat model.
Supporting Evidence
- The scaffolds promoted cell adhesion and had no cytotoxic effect on ADSCs.
- Ad-BMP2 successfully transduced the cells and induced osteogenic differentiation in vitro.
- In vivo studies demonstrated that the scaffolds had osteoinductive properties, promoting bone formation.
- The elastic modulus of the scaffolds was comparable in both axial and radial compression directions.
Takeaway
Scientists created special 3D-printed scaffolds that help bones heal better by using a gene that tells cells to grow bone.
Methodology
The study involved creating 3D-printed PLGA scaffolds infused with adenoviral constructs and testing their properties in vitro and in vivo.
Limitations
Further long-term research is needed to fully understand the potential immunogenic effects of adenoviral vectors.
Participant Demographics
Wistar rats weighing 250–300 g were used in the in vivo study.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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